Julia/Juliette Roberts - yay or nay

Is it ok to consider naming a child after a famous person (Julia Roberts) or a variant of it?
My SO is obsessed with the name and I like it, but am tempted to push Julia to a middle name. 

It's baby #3 and the other children have rarer names (~350th and ~12000th). However, Julia/Juliet/Juliette does sound good in combination with the other 2 children's names. We'd probably roll with an ultra rare middle name like Julia Athanasia. 

Welcome thoughts and advice! I have no strong feelings about the actress, but acknowledge she's very popular.
We're more of a books/boardgames family than a movie watching family.